CN105644591A - Condition monitoring system and method for monitoring condition of bearing unit for vehicle - Google Patents

Condition monitoring system and method for monitoring condition of bearing unit for vehicle Download PDF

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Publication number
CN105644591A
CN105644591A CN201510846516.2A CN201510846516A CN105644591A CN 105644591 A CN105644591 A CN 105644591A CN 201510846516 A CN201510846516 A CN 201510846516A CN 105644591 A CN105644591 A CN 105644591A
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China
Prior art keywords
waypoint
condition monitoring
unit
control unit
route
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Granted
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CN201510846516.2A
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Chinese (zh)
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CN105644591B (en
Inventor
J.弗朗切蒂
R.帕瓦里
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SKF AB
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SKF AB
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/023—Determination of driving direction of vehicle or train
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0047—Hubs characterised by functional integration of other elements
    • B60B27/0068—Hubs characterised by functional integration of other elements the element being a sensor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
    • B61K9/04—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0018—Communication with or on the vehicle or train
    • B61L15/0027—Radio-based, e.g. using GSM-R
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0081—On-board diagnosis or maintenance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/06—Indicating or recording the setting of track apparatus, e.g. of points, of signals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
    • B61L27/57—Trackside diagnosis or maintenance, e.g. software upgrades for vehicles or trains, e.g. trackside supervision of train conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/527—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to vibration and noise
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G01M13/045—Acoustic or vibration analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/08—Railway vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/14—Receivers specially adapted for specific applications
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2205/00—Communication or navigation systems for railway traffic
    • B61L2205/04—Satellite based navigation systems, e.g. global positioning system [GPS]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2233/00—Monitoring condition, e.g. temperature, load, vibration

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Navigation (AREA)

Abstract

The invention relates to a condition monitoring system for vehicle bearing units. The system includes at least one condition monitoring unit (10) for measuring at least one operating parameter of one bearing unit and a control unit (18) for receiving and processing signals from the condition monitoring unit (10). The control unit (18) is configured to activate/deactivate the condition monitoring unit(s) (10) upon reaching at least one predetermined waypoint stored in a waypoint memory of the control unit (18). The condition monitoring system can be equipped with a waypoint setting unit (22) for setting the at least one waypoint at which the condition monitoring unit(s) (10) shall be activated/deactivated and to store the waypoint in the waypoint memory. The waypoint setting unit (22) processes route data includes data on at least a curviness of at least one route intended for vehicle travel.

Description

Condition monitoring system and monitoring are used for the method for the situation of the bearing unit of vehicle
Technical field
The present invention relates in vehicle for monitor shaft bearing unit or the condition monitoring system of axletree and a kind of method of situation for monitoring bearing or axletree. Specifically, the present invention relates to monitoring for the system of train axle and/or bearing.
Background technology
It is known that condition monitoring unit is attached to train axle or its bearing with monitoring parameter (such as vibrate, temperature and audio emission).
In the part of motor vehicle, there is excessive wired sensor, a lot of and ECU (engine control unit) and OBD (plate load diagnosis) system relationship wherein. These sensors are fully integratible in the architecture of vehicle, thus between the working life of vehicle, they have continuous print power supply. Data corresponding is by CAN (controller zone network) bus support. These sensing systems operate continuously, to monitor their target component.
Locomotive and passenger carriage also have fully-integrated a series of sensing systems, but they are usually relevant with security critical function.
Do not having network structure or condition monitoring unit must be attached in the application of rotary components, proposing and used wireless node. About the consideration of design wireless sensor system be they battery the frequent instruction maintenance of life-span institute between time. Therefore, power management is an important factor in design wireless sensor system, affects immediately because service intervals is had by it.
The currently available condition monitoring solution with constant power source is configured to catch continuously data. But, the data caught comprise a large amount of artefact usually, and the measured sinuousness of curve reflection track, the flaw of railway and other external influence. Therefore complicated algorithm must be used with filtering data thus eliminate artefact and extract the information of the valuable and reliable situation about bearing from mass data.
In order to save power and guarantee the good quality of data, propose to measure the particular section being limited to the track expecting low ground unrest and external factor. For this reason, propose to arrange the predetermined waypoint triggering the measurement based on gps data.If reaching the specific waypoint along track, then control unit triggers the signal starting condition monitoring unit, to measure bearing or the operating parameters of other assembly just monitored, and similarly, if vehicle deorbit, then stops monitoring.
In order to guarantee consistent and reliable data readings, condition monitoring unit should catch the data of the known good quality section about track. Preferably, route or track should be straight, levels, and allow train to reach and keep constant speed. In addition, these waypoints are track trigger coordinate, and running is the reference point for data trend, because all measurements are by the identical point on therefore reference rail or route.
When meeting correct condition, by data being powered and daily entry reaches short time period, obviously reduce energy consumption. Trigger the measurement on the workpiece of known track and reduce data gathering error or abnormality, and optimize power service condition. The energy consumption reduced can make it possible to use the producer with lower rated output or power results parts, or increases the life-span of battery.
According to prior art, these GPS waypoints activating or forbidding triggering sensor unit or condition monitoring unit are manually set in advance. This is tired tired and complexity, and needs to involve the skilled slip-stick artist with the geography of track and the technology monitored and the knowledge of technology details.
Summary of the invention
Can automatically detecting, by providing a kind of, the condition monitoring system triggering the activation of condition monitoring unit and/or the waypoint of forbidding, the present invention seeks to overcome the problems referred to above of prior art.
First aspect present invention relates to the condition monitoring system of a kind of bearing unit for vehicle, and described system comprises: at least one condition monitoring unit, and it is for measuring at least one operating parameters of a bearing unit; And control unit, it is for receiving and processes the signal obtained from described condition monitoring unit; Wherein, described control unit be configured to detect the geographical position of described vehicle and store in the waypoint storer reaching described control unit at least one predetermined waypoint time activate and/or forbidding at least one condition monitoring unit described.
Propose system is equipped with waypoint setting unit further, it is for setting living and/or forbid at least one waypoint described at least one condition monitoring unit described and described waypoint is stored in described waypoint storer, wherein, described waypoint setting unit is configured to process the route data of the data of the sinuousness comprising at least one route at least travelled about described vehicle intention, the process of described route data comprises: at least one route segment that the sinuousness extracting described route is in pre-determined range, and at least one waypoint described is set in the described route segment extracted.
The invention enables and waypoint can be set based on the digital processing fully automated of route data, have according to the possibility expecting freely design standard (such as sinuousness or other parameter). By making it possible to carry out reliably triggering with operating system on an intermittent basis but not operate continuously, the present invention greatly simplifies power management.
Can the route that goes out of selective extraction or track section set, thus as mentioned above, it is necessary, quality data can be expected. The parameter of sinuousness describing track section can be radius-of-curvature, the local bending degree defined in the field of its number or infinitesimal geometry on the contrary. The average local curvature that the sinuousness of road segments can be defined as on section or maximum local curvature.
Given needs makes minimise power consumption, the invention enables can only when the monitoring of the assembly of sensing system be necessary maybe by generation the most effective result time just make them to operate.When the machine just monitored is mobile system (such as train) a part of, so needing to consider additional external factor. The character of these external factor is change, and associates with the interest parameter for wireless sensor system as their Relativity. Such as, if sensing system is just monitoring the wheel bearing on train, then the character of its track run highly is correlated with. In a set by while affecting sensing data, their the minimum and maximum load that wheel bearing is probably in the curved section of track.
The method that the general instruction of the character of the parameter just monitored is taked. Terminate operation time period and also it is worth similar consideration. In addition, when processing mobile system (such as vehicle), it may be necessary to the data from wireless sensor system are sent to external system. When adopting short distance RF communication and external system is fixed installation, it is possible to suitably, consideration is applied to and triggers communication system based on geographical position (namely only when external system is in communication when interior).
According to a further aspect in the invention, described waypoint setting unit is configured to the slope of the route segment extracted from described route data, and abandons the route segment extracted when described slope is in outside pre-determined range.
Contriver also proposes, described waypoint setting unit is configured to determine the central point of the route segment extracted, and waypoint is arranged on every side of described central point, thus the distance between described central point and described end points is divided into estimated rate by described waypoint respectively, wherein, described estimated rate is preferably 50%.
According to a further aspect of the invention, described waypoint setting unit is configured to be arranged on the predetermined distance place of the end points of the route segment extracted described in distance. Described distance can such as consider the length of train, and when the tail end of train not yet enters for monitoring selected route segment, activates described condition monitoring unit.
Contriver also proposes, each instruction of waypoint stress live described condition monitoring unit predetermined route segment set outside the beginning of a route segment or end. When described waypoint together with control unit explain described waypoint based on the direction of traveling be stored time, identical waypoint may be used for indicating beginning and the end of described route segment.
In a preferred embodiment of the invention, described control unit is equipped with storer, it is for storing at least one radius and the coordinate of multiple waypoint, wherein, the distance that described control unit is configured between at least one and the geographical position detected of described waypoint activates and/or forbids described condition monitoring unit when being less than described radius. By arranging radius, it is possible to compensate the detection in geographical position and/or the inaccuracy arranging aspect of waypoint. Need not accurately reach waypoint. In addition, if vehicle near described waypoint up to certain minimal distance, then be enough to.
According to a further aspect of the invention, described storer is configured to store at least one the relevant travel direction with described waypoint, wherein, when the distance that described control unit is configured between at least one and the geographical position detected of described waypoint is less than described radius and when further described vehicle travel direction coupling and at least one waypoint described about and store described travel direction time, activate and/or forbid described condition monitoring unit.
Described radius avoids missing the triggering in waypoint, and the placement making waypoint is easier, because it need not be 100% accurate for placing.Owing to gps signal reflection and be coarse a little sometimes, receiving apparatus has inaccuracy.
Trigger radius and make it possible to place border around waypoint. It can such as be used in waypoint long distance railroad track several meters and when indirectly locating thereon. User can specify in other suitable distance that receiving apparatus is any waypoint that should trigger at 100m or its. When for track quality assessment, user perhaps wishes that very specifically some place in orbit triggers, this can also be useful. Can by arranging radius less to realize this situation.
Contriver also proposes, and described condition monitoring unit is configured to wirelessly communicate with described control unit. Make even there is no the vehicle (such as goods train) of structure base communication also can use the system according to the present invention like this. The function of gps system and wireless sensor system are combined by the present invention, optimally to control for the interval policer operation of vehicle He other mobile apparatus. Separating sensor operation is provided to be its normal usage of continuous print like this. Therefore, developed use GPS position information as the method for the initiation operated for wireless senser and the triggering of termination.
According to a further aspect of the invention, described condition monitoring unit is configured to be attached to the wheel axle unit of train, and wherein, described control unit is configured to monitor multiple situations taking turns axle unit of described train.
In a preferred embodiment of the invention, described control unit is configured to measure throughout multiple condition monitoring unit triggers in the given geographical location corresponding with described waypoint simultaneously.
Contriver also proposes, and described control unit is configured to the object in order to measure track quality and uses the data collected by described condition monitoring unit as the instrument monitored for architecture.
The present invention relate on the other hand a kind of for use at least one condition monitoring unit of at least one operating parameters for measuring a bearing unit and for receiving and the control unit processing the signal obtained from described condition monitoring unit monitors the method for situation of the bearing unit for vehicle, wherein, during at least one the predetermined waypoint stored in the waypoint storer reaching described control unit, activate and/or forbid described condition monitoring unit.
Propose described method and also comprise waypoint setting steps: at least one waypoint described that stress live and/or forbid at least one condition monitoring unit described is set and described waypoint is stored in described waypoint storer, wherein, described waypoint setting steps comprises: process comprises the route data of the data of the sinuousness of at least one route at least travelled about described vehicle intention, the process of described route data comprises: at least one route segment that the sinuousness extracting described route is in pre-determined range, and at least one waypoint described is set in the described route segment extracted.
Further proposition system also comprises the parts in the geographical position for detecting described vehicle or described condition monitoring unit, and wherein, described condition monitoring unit is configured to depend on the geographical position detected and activate and/or forbid.
As the possibility of the function in geographical position, there is such advantage for triggering to monitor: data catch the track of vehicle or the part of route that can be limited as and expect that reliable data obtain. When and where this solution can identify trigger data record with repeating. Described geographical position need not define about gps coordinate, and it is of course possible to is defined as from given starting point along the distance of predetermined route running.
But, GPS navigation system is associated with supervisory system the basis being provided for triggering system based on geographical position, and without the need to architecture (the hot case of such as rail side). This kind of mechanism makes wireless sensor system can monitor interest parameter by its often kind of occasion at train in the same sector of track, and passes through time or the frequency on the date of the section of this track regardless of it.
In a preferred embodiment of the invention, the described parts for detecting geographical position comprise the parts of the signal of the satellite for receiving world locational system (GPS). Consider that GPS provides the most suitable enable mechanism to realize the demand of the system according to the present invention.
The gps system that the control unit of the system being arranged on train or truck merges can accurately be monitored and confirm position and the speed of train. The length of the track being suitable for catching data and straight section can be identified, and coordinate can be programmed in control unit. When arriving these coordinates, center-control unit can be given an order with from dormancy mode wakeup condition monitoring unit, the train speed that relaying is suitable, and trigger data is measured. If not meeting correct GPS and/or velocity conditions, then do not perform data record, therefore save energy.
The automatization " waking up " of the condition monitoring unit that the GPS location being combined with railway network map triggers, start data record and return the mode very efficiently that " dormancy pattern " is a kind of computation complexity for reducing energy consumption and above-mentioned data processing.
This system can be applied to the vehicle of any kind specifically comprising train and truck.
In a preferred embodiment of the invention, it is proposed to the described parts for detecting geographical position are parts for the control unit of the vehicle in the compartment of locomotive or the truck being centrally placed in such as train. The existing GPS in vehicle control system can be used.
As alternative embodiment of the present invention, it is proposed to the described parts for detecting geographical position are parts for the described condition monitoring unit being attached to described bearing unit. The described parts for detecting geographical position can be the simple GPS of the mobile telephone technology as form known, its by enough little being integrated in axle box/on condition monitoring unit in.
The present invention relates to a kind of condition monitoring unit for using in above-mentioned condition supervisory system on the other hand, wherein, described condition monitoring unit comprises controller, operate under being configured to save dormancy pattern and enable mode at energy, wherein, at least some in the parameter just monitored under described enable mode is not monitored in the hibernation mode, wherein, described controller is configured to the signal based on described controller receives and from described dormancy pattern, described condition monitoring unit is switched to described enable mode, and it is switched to described dormancy pattern from described enable mode.
In addition, propose described controller to be configured to, when the control unit of the vehicle from described condition monitoring operations receives wake-up signal, from described dormancy pattern, described condition monitoring unit is switched to described enable mode, and when receiving sleep signal from described control unit, described condition monitoring unit is switched to described dormancy pattern from described enable mode.
The present invention relates to the object in order to measure track quality on the other hand and said system is used as the instrument that architecture is monitored. The burst being configured to catch in specific location audio emission and vibration due to wireless senser, therefore they can also be used for catching the characteristic of track condition in certain tracks segmentation place. When railway operator suspect track given section may impaired and and then passenger may be allowed uncomfortable or when damaging whole car group, system can be configured to catch data at these particular fragments places, so that whether railway operator trend degradation or confirmation track section be in fact impaired.
The following indefiniteness of the embodiment of the present invention describe and claims and accompanying drawing in multiple characteristic feature of the present invention shown in particular combination.Those skilled in the art easily will can consider other combination or the part combination of these features, so that the present invention defined in claim to be applicable to his or her concrete needs.
Accompanying drawing explanation
Fig. 1 is schematically showing of the train of the condition monitoring system comprising the bearing unit for vehicle according to the present invention,
Fig. 2 is the system component diagram illustrating the supervisory system according to the present invention;
Fig. 3 illustrates the waypoint alarm activity algorithm that the control unit that the waypoint determining waypoint according to the present invention arrives realizes; And
Fig. 4 illustrates the method for setting waypoint realized in the waypoint setting unit according to the present invention.
Embodiment
Fig. 1 is schematically showing of the train of the condition monitoring system comprising the bearing unit for vehicle according to the present invention. System comprise multiple condition monitoring unit 10 each for each wheel of train for measuring at least one operating parameters of a bearing unit of train axle box. Condition monitoring unit 10 is formed as being attached to or being embedded into the wireless sensor node in the end plate of two row roller bearing assembling of wheel shaft (hub) (not shown). Measured operating parameters comprises the vibration of bearing, audio emission and temperature, and condition monitoring unit 10 comprises respective sensor 12 respectively.
The locomotive of train provides and serves as receiving and process the system concentrator of the signal obtained from condition monitoring unit 10. Control unit 18 is substantially Personal Computer, and it is equipped with for controlling and monitors the various mechanical means of train and provide alarm signal when producing to damage or its based on the signal detection received from condition monitoring unit 10.
Being communicated between control unit 18 and condition monitoring unit 10 is partially the wireless of use antenna 17a. If necessary, then in compartment each or some remote network manager 15 is equipped with, it serves as wireless network manager, for the power provisioning manager of unit 10 and serve as wireless network extender. Wireless network can be single band 2.4GHz network or two waveband 2.4GHz and 5GHz network. Technician can be depended on situation and use other communication frequency or agreement, comprises for key and for the different agreement of the communication between extender and unit 10.
Control unit 18 is also equipped with gps antenna 17c and antenna 17b, and it is for using the mobile communication interface of such as GSM, GPRS, UMTS, LTE or HSDPA standard.
In the embodiment in figure 1, control unit 18 comprises GPS 19, and it is from the system acceptance signal for locating of the satellite 30 as the parts for detecting geographical position. System is configured to make: depend on that condition monitoring unit 10 is activated and/or forbids in the geographical position detected of following further explanation.
Fig. 2 illustrates the system component diagram of the supervisory system according to the present invention.
Condition monitoring unit 10 is equipped with controller 14 and the emitter 16 for radio communication, and is equipped with the battery that sensor, controller 14 and emitter 16 are powered.
Control unit 18 is equipped with storer 20, for the route data of store car and comprise other data of the sensing data that sensor 12 is caught. Being in the embodiment of train at vehicle, route data is the map of railway network. In other embodiments, route data can be set or the database of network or the waypoint formed with node and link. The multiple section stored in database in the storer 20 that the parameter with the character describing section (such as slope, mean curvature and maximum allow traveling speed) that comprises railway network combines or link.Database in storer 20 comprises vehicle can along the multiple potential route sections travelled.
Waypoint setting unit 22 is configured to arrange the waypoint for activating condition monitoring unit 10 in the suitable section of track with sensor 12. Waypoint setting unit 22 can arrange forbidding waypoint equally.
Waypoint setting unit 22 can be the part that waypoint is sent to the remote server of control unit 18 by control unit 18 or use mobile communication interface.
Each in waypoint is the data structure of another the optional field not only comprising gps coordinate but also comprising the travel direction indicating the train that should trigger monitoring. In addition, data structure can comprise for speed bound and in an embodiment of the invention for the field of radius (namely triggering the minor increment apart from gps coordinate needed for waypoint alarm). Correspondingly, system can be configured to make: every time train is by waypoint, but not only when train in orbit two may on one of directions by time or when being in the expectation scope being suitable for obtaining high-quality measurement when speed, do not trigger alarm.
In accompanying drawing embodiment, waypoint setting unit 22 is the GUI application of the data gathering waypoint on the route for planning train. They can specifically comprise the actual coordinate that speed is known as in constant straight path. Waypoint setting unit 22 in embodiment provides the Standard File Format (such as GML) of KML (spoon hole mark language) file or other kind as the standard being used for the GIS data that various map provider uses. This kind of general file for downloading and can use the waypoint stored in waypoint or waypoint database 23 by the server of condition monitoring system.
Waypoint is the starting point of route segment and the candidate of end points of a part for the predetermined route segment set that the data for carrying out as condition monitoring unit 10 of stress living obtain.
Control unit 18 is configured to when train sends wake-up signal to activate condition monitoring unit 10 through time waypoint (namely entering the variation route section in the middle of the route segment set extracted and select about monitoring). When train is through forbidding waypoint (namely leaving the route segment that should perform to measure), control unit 18 forbids condition monitoring unit 10 by transmission sleep signal.
After measurement is complete, measured data are stored in storer 20 and use the mobile communication interface of control unit 18 to be sent to long-range condition monitoring server.
In a preferred embodiment of the invention, GPS module 27 is embodied as in control unit 18 storehouse or GPS processing threads. It will have the function of the required acquisition of the GIS data from global navigation satellite system (GNSS) receiving apparatus 19. Thread in control unit 18 loads software module and starts GPS message interpretation. This thread arranges management by the option in the server management device of control unit 18. If selecting GPS option and loading suitable KML data, then thread starts.
When starting, GPS module 27 automatically is connected to GPS device and detects the emulator connected. Then, gps system is intercepted and is explained the message for the position coded by the standard set by national marine Institution of Electronics (NMEA), speed and direction. Then, it may also be useful to the data received from waypoint setting unit 22 upgrade waypoint database 23 in the storer of the waypoint set having storer 20. Position-based, gps system determines the waypoint of each arrived in the waypoint provided, and notifies client computer when arriving waypoint.
System also comprises: server manager application 21, and it provides configuration data;Collector application 24, it is for manually triggering measurement; Equipment manager application 25, its setting of unit 10 for managing on wheel; And communication service 26.
Can selection of land, gps system monitors that the speed surmounting tolerance limit restriction (if provide) changes, and notifies to change. For this reason, repeat ground reception and process NMEA message, until receiving stopping message. When stopping, performing necessary cleaning.
Fig. 3 illustrates and determines being described in more detail of the waypoint alarm activity algorithm realized in the GPS module 27 of the waypoint of arrival waypoint. GPS module starts, and it works in 2 parallel paths. Waypoint processes the left-hand side being illustrated in Fig. 3, and event handling is illustrated in the right hand side in Fig. 3. In waypoint processes, when receiving position data from GPS 19 in step 301, check whether any waypoint is in the pre-configured search radius of current position in step 302 every time. Position can be depended on and/or depend on that monitoring task is to arrange pre-configured search radius.
If at search radius internal memory in any waypoint, then in step 303, check and each combination in them and the direction variable that stores whether its direction mating vehicle. If direction is mated, then in step 304, speed is checked. When speed is more than or equal to pre-configured value, call event handling path in step 305, to propose waypoint alarm. The waypoint of current position, traveling and the details of speed are included as a part for alarm information. Being control unit 18 to the subscriber of this alarm, it is delivered to sensor node 10, to use interface 26 to perform data gathering.
Arranging in the embodiment for the specific radius of waypoint, waypoint should arrange to be less than search radius, and is triggered when waypoint alarm should only be in when the distance apart from waypoint in search radius and waypoint certain radius. Once generate waypoint alarm, just mark waypoint is for process.
The system of accurate network time is specified to promote to trigger the alternative method measured about measuring the time opening. The position data that system software monitoring GPS module provides consistently, and estimate that it will be expended in the time arriving waypoint position. Arriving the time before waypoint, broadcast message is issued to gateway management device by TCP/IP by system software, with the given network time triggered of instruction node in future. When that time arrives, each node performs measurement, and data are stored in inside by instruction to record the time of data set together with it.
Fig. 4 illustrates the above-mentioned method for arranging waypoint based on the route data realized in waypoint setting unit 22. In step 401, waypoint setting unit 22 reads the route data comprising at least data of sinuousness about the route residing for waypoint. Sinuousness is stored in route data as the local radius of curvature of track as the function of track position. In step 402, waypoint setting unit 22 identifies local radius of curvature and intersects the point of predetermined threshold, and the straight section of identified tracks or low sinuousness section are greater than, as radius-of-curvature, the section that the point of threshold value limits.
In step 403, then waypoint setting unit 22 checks further the low sinuousness section being suitable for condition monitoring, and abandon too short or slope be in pre-determined range outside section. In order to a rear object, waypoint setting unit 22 is configured to the slope of the route segment extracted from route data, and abandons, when slope is in outside pre-determined range (namely not level), the route segment extracted.Alternatively, waypoint setting unit 22 can use height change but not slope as criterion, with the suitable section of identified tracks.
All the other sections are left by waypoint setting unit 22 and are suitable for arranging waypoint. For this reason, waypoint setting unit 22 is configured to determine that the central point of the route segment extracted is as the first waypoint, and waypoint is arranged on every side of described central point, thus the distance between described central point and described end points is divided by described waypoint respectively according to estimated rate, wherein, described estimated rate is preferably 50%.
Waypoint set by waypoint setting unit 22 can propose to user as the suggestion of the coordinate for good quality track section, and then user can choose specific waypoint based on system demand. User can derive the waypoint expected by the data layout expected. Alternatively, as above determined waypoint can be adopted immediately by system.
Activate and forbidding can depend on further other parameter (such as travel speed, outside temperature and since activating the time passed recently).
As mentioned above, it is necessary, the condition monitoring unit 10 used in above-mentioned condition supervisory system comprises controller 14, it operates under being configured to save dormancy pattern and enable mode at energy. Controller 14 is configured to the signal based on controller 14 receives via emitter 16 from control unit 18 and from dormancy pattern, condition monitoring unit 10 is switched to enable mode, and it is switched to dormancy pattern from enable mode. More specifically, controller 14 is configured to, when receiving wake-up signal from control unit 18, from dormancy pattern, condition monitoring unit 10 is switched to enable mode, and condition monitoring unit 10 being switched to dormancy pattern from enable mode when receiving sleep signal from control unit 18.
When considering the example of above-mentioned train, it may also be useful to apply in a database daily entry waypoint coordinate in advance as the GUI waypoint setting unit 22 in the center-control unit 18 of the central axle of management monitoring system operation.
Hardware GNSS receiver module receives GIS signal from multiple satellite 30, and signal is converted to NMEA formatting messages, for GPS module, it provides continuously for application software and comprises the longitude of approximate distance (and time) and the positional information of latitude data that PC application may be used for determining distance target waypoint.
Dynamic table is preserved in a database by the application software in control unit 18, to coordinate the data received as the response to broadcasting command. Complete this operation to prevent losing in the data of power excessively or during connectivity problem. Dynamic data needs to refresh by predetermined space.
As optional feature, GPS module reports that speed changes consistently, is processed and if speed changes event, then correspondingly more new database.
When receiving all data, date/time and speed and database compare, and change for any speed. If speed keeps constant, then daily entry sample, and asks waveform. If observing any speed changes values exceeding threshold value, then sample is rendered as invalid, and does not store in a database.
In other embodiments of the present invention, condition monitoring system can comprise INS (inertial navigation system). , it is possible to condition monitoring unit 10 is equipped with 3 or 6 axle accelerator or gyrostats, in addition and in process waveform and/or use the data measured by these equipment in the reliability judging data. This will make it possible to carry out the control of the improvement of sensing system, and by making it possible to provide additional ring environment information and contribute to data processing except accurate acceleration also comprises the relevant change of certain track except measuring.
Consider the consistence of the situation that these factors contribute to keeping carrying out monitoring.When by providing angular aceeleration and velocity readings to monitor in the curved section of track, it be useful for it can also to prove. After all, the straight workpiece being not only applied to track is also applied to any section of the track of train driving process by these same principle of operation, and such as, the information that the bearing under monitoring overall loading can provide.

Claims (13)

1., for the condition monitoring system of bearing unit for vehicle, described system comprises: at least one condition monitoring unit (10), and it is for measuring at least one operating parameters of a bearing unit; And control unit (18), it is for receiving and processes the signal obtained from described condition monitoring unit (10); Wherein, described control unit (18) is configured to activate when arriving in the waypoint storer of described control unit (18) at least one the predetermined waypoint stored and/or at least condition monitoring unit (10) described in forbidding,
It is characterized in that, also comprise waypoint setting unit (22), it is for setting at least one waypoint described that stress live and/or forbid at least one condition monitoring unit (10) described and described waypoint is stored in described waypoint storer, wherein, described waypoint setting unit (22) is configured to process the route data of the data of the sinuousness comprising at least one route at least travelled about described vehicle intention, the process of described route data comprises: at least one route segment that the sinuousness extracting described route is in pre-determined range, and at least one waypoint described is set in the described route segment extracted.
2. condition monitoring system as claimed in claim 1,
It is characterized in that, described waypoint setting unit (22) is configured to the slope of the route segment extracted from described route data, and abandons the route segment extracted when described slope is in outside pre-determined range.
3. condition monitoring system as described in one of aforementioned claim,
It is characterized in that, described waypoint setting unit (22) is configured to determine the central point of the route segment extracted, and waypoint is arranged on every side of described central point, thus the distance between described central point and described end points is divided by described waypoint respectively according to estimated rate.
4. condition monitoring system as claimed in claim 3,
It is characterized in that, described estimated rate is 50%.
5. condition monitoring system as described in one of claim 1-2,
It is characterized in that, described waypoint setting unit (22) is configured to arrange waypoint at the predetermined distance place of the end points of the route segment extracted described in distance.
6. condition monitoring system as described in one of aforementioned claim,
It is characterized in that, each instruction of described waypoint stress live described condition monitoring unit predetermined route segment set outside the beginning of a route segment or end.
7. condition monitoring system as described in one of aforementioned claim,
It is characterized in that, described control unit (18) is equipped with storer (20), it is for storing at least one radius and the coordinate of multiple waypoint, wherein, the distance that described control unit (18) is configured between at least one and the geographical position detected of described waypoint activates and/or forbids described condition monitoring unit (10) when being less than described radius.
8. condition monitoring system as described in one of aforementioned claim,
It is characterized in that, described storer (20) is configured to store at least one the relevant travel direction with described waypoint, wherein, when the distance that described control unit (18) is configured between at least one and the geographical position detected of described waypoint is less than described radius and when further described vehicle travel direction coupling and at least one waypoint described about and store described travel direction time, activate and/or forbid described condition monitoring unit (10).
9. condition monitoring system as described in one of aforementioned claim,
It is characterized in that, described condition monitoring unit (10) is configured to wirelessly communicate with described control unit (18).
10. condition monitoring system as described in one of aforementioned claim,
It is characterized in that, described condition monitoring unit (10) is configured to be attached to the wheel axle unit of train, and wherein, described control unit (18) is configured to monitor multiple situations taking turns axle unit of described train.
11. condition monitoring system as described in one of aforementioned claim,
It is characterized in that, described control unit (18) is configured to measure throughout the triggering of multiple condition monitoring unit (10) in the given geographical location corresponding with described waypoint simultaneously.
12. condition monitoring system as described in one of aforementioned claim,
It is characterized in that, described control unit (18) is configured to the object in order to measure track quality and uses the data collected by described condition monitoring unit (10) as the instrument monitored for architecture.
13. 1 kinds for use at least one operating parameters for measuring a bearing unit at least one condition monitoring unit (10) and for receiving and the control unit (18) processing the signal obtained from described condition monitoring unit (10) monitors the method for situation of the bearing unit for vehicle
Wherein, when reaching in the waypoint storer of described control unit (18) at least one the predetermined waypoint stored, activate and/or forbid described condition monitoring unit (10),
It is characterized in that, also comprise waypoint setting steps: at least one waypoint described that stress live and/or forbid at least one condition monitoring unit (10) described is set and described waypoint is stored in described waypoint storer, wherein, described waypoint setting steps comprises: process comprises the route data of the data of the sinuousness of at least one route at least travelled about described vehicle intention, the process of described route data comprises: at least one route segment that the sinuousness extracting described route is in pre-determined range, and at least one waypoint described is set in the described route segment extracted.
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US20160152255A1 (en) 2016-06-02
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